RAPID AUDIOGRAM DETERMINATION USING EVOKED RESPONSES

虽然听力评估使用听觉脑干反应（ABR） 已经成为一种常规测试，目前的临床程序采用点击 ABR刺激仅产生对听力的粗略估计。 频率 具体的测试程序太长，无法应用于新生儿， 婴儿人口，最需要详细 听力评估 为了获得ABR听力图（四- 频率测试阈值），快速ABR采集系统， 配备有自动生成频率特定刺激， 应设计阈值响应的快速检测。 以获得最大 有效性，该设备应提供高质量的临床医生 记录类似于标准临床实践中使用 耗时的程序。 该项目旨在开发一种设备， 满足临床大规模筛查检测的需要， 智能信号处理技术的过程中采集和 识别用于确定听力配置的ABR反应， 很难测试人群。 在这个项目中，我们建议开发ABR信号采集和 处理方法，这将大大减少采集时间， 以及文物的影响，同时产生定量措施， 包括所测试的频率的潜伏期-强度函数。 这些 方法将导致开发一种自动EP系统， 将使我们能够在短时间内获得临床可用的ABR听力图， 框架适合用作大规模筛选和测试装置。 提出的快速听力图测定方法将使临床医生 为了更好地评估婴儿的听力状况以进行康复治疗， 治疗和教育干预。 因此，所提出的装置将 在听力保健方面立即找到商业应用。

Although hearing evaluation using the Auditory Brainstem Response (ABR) has become a routine test, current clinical procedures employing click stimuli with ABR yield only a rough estimate of hearing. Frequency specific test procedures are too lengthy to be applied to newborn and infant populations, the populations who are in most need of detailed hearing evaluation. In order to obtain an ABR audiogram (a four- frequency test of threshold), fast ABR acquisition systems that are equipped with automated generation of frequency specific stimuli and rapid detection of threshold responses should be devised. For maximum effectiveness, the device should provide clinicians with high quality recordings similar to those obtained in standard clinical practice using time-consuming procedures. This project aims at developing a device that meets the clinical needs of mass screening and testing by applying intelligent signal processing technology to the process of acquiring and identifying ABR responses for determination of hearing configuration in difficult to test populations. In this project, we propose to develop ABR signal acquisition and processing methods which will significantly reduce acquisition time as well as the effects of artifacts while yielding quantitative measures including latency-intensity functions for the frequencies tested. These methods will result in the development of an automated EP system which will enable us to obtain a clinically usable ABR audiogram in a time frame suitable for use as a mass screening and testing device. The proposed rapid audiogram determination methods will enable clinicians to better evaluate the hearing status of infants for rehabilitative, therapeutic and educational intervention. Thus, the proposed device will find an immediate commercial application in hearing health care.